68740746 has 64 divisors (see below), whose sum is σ = 152486400. Its totient is φ = 20575296.

The previous prime is 68740729. The next prime is 68740751. The reversal of 68740746 is 64704786.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68740698 and 68740707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181185 + ... + 181563.

It is an arithmetic number, because the mean of its divisors is an integer number (2382600).

Almost surely, 2^68740746 is an apocalyptic number.

68740746 is an abundant number, since it is smaller than the sum of its proper divisors (83745654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68740746 is a wasteful number, since it uses less digits than its factorization.

68740746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 68740746 is about 8291.0039199122. The cubic root of 68740746 is about 409.6422538718.

The spelling of 68740746 in words is "sixty-eight million, seven hundred forty thousand, seven hundred forty-six".